roederer



' No. 627,354. Patented lune 20, I899.

l. BOEDEREFL DOUBLE MACHINE TOOL.

(Application filed Doc. 10, 1897.)

(No Model.) 4 Sheets-Sheet I.

06%; %%M MMM No. 627,354. Patented June 20, |a99 l BOEDEBER 'DUUBLE MACHINE TUOL.

(Application filed Dec. 10, 1897.)

4 Sheets-Sheet 2.

(No Model.)

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No. 627,354. Patented June 20, I899.

l BOEDERER. DOUBLE MACHINE TOOL.

(Application filed Dec. 10, 1897.) (No Model.)

4 Sheets-$heel 3.

MY neaszs In wen u 1'.- 6/0 j m: uonms Pzrzns 120.. n p-momma. msmnamn. n. c.

No. 627,354. Patented June 20, I899.

l. ROEDEREB. DOUBLE MACHINE TOOL.

(Application filed Dec. 10, 1897.) (No Model.)

4 Sheets-Sheet 4.

U ITED STATES" ATENT OFFICE.

rcnAz ROEDERER, OF PRAGUE, AUSTRIA-HUNGARY.

DOUBLE MACHINE- TOOL.

SiECIFIOA'l-ION formingpart of Letters Patent No. 627,354, dated June 20,1899.

Application filed December 10, 1897- Serial No. 661,404. (No model.)

To aZZ whom it may concern:

Be it known that I, IGNAZ ROEDEBER, a sub ject of the Emperor of Austria-Hungary, residing at Prague, Bohemia, Austria-Hungary, have invented certain Improvements in or Relating to Double Machine-Tools, (for which I have obtained Letters Patent in each of the following countries: Austria, June 22, 1897, i

No. 47/2,347; France, August 7, 1897, No. 266,172; Belgium, April30,18 97, No. 127,619; Switzerland, September 15, 1897, No. 14,278, and England, September 23, 1897, No. 9,319,)

which are/to bedescribed in the following.

specification and shown on the accompanying drawings.

The object of my invention is to produce a double machine-tool so arranged that from a main driving-shaft the two tools are movedindependently'of each other and so that the tool on one side of the machine is given a rotative movement while the tool on the other side of the machine is given a reciprocating motion. The tool-frames may be brought into a vertical or horizontal or slanting position, and they are so arranged that diiferent tools may be affixed to them. Themachine so arranged is therefore capable of performing all the operations desired, such as boring, turning, cutting, planing, shaping, key-grooving, &c.

The same work or blank when once secured may be subjected to a series of various treatments.

The machine may be provided with auto:

matic feed devices for the tools or for the work. It may be' arranged to be driven by power as well as by hand. Hence the machine may be utilized for doingwork in case the engine is stopped. The double machinetool may therefore do the same duties as a series of separate machine-tools that-occupy more space and require more outlay in capital.

- The double machine-tool is illustrated by the accompanying drawings, in which Figure 1 is an elevation; Fig. 2, a side view of the machine side with the rotary tool; Fig. 1 3, a ground plan of the machine with the tool- 1 frames arranged vertically, and Fig. 4 a ground plan of the machine with the toolframes arranged horizontally, while Figs. 5 and 6 will be referred to later on.

On the ground-plate A the cylindrical pillar B is fixed, which carries the frame 0 and is provided with a rack D for raising and low ering the double table carrier E. In the frame 0 the main driving-shaft F, with the cone G, the counter-shaft H, and the two side driving-shafts I and K, is fitted to run. When the counter-shaft H is put into gear in any usual manner while the cone G is disconnected from the gearwheel F the cone G will transmit its motion through the gearwheels F F the counter-shaft H, and the gear-wheels F F to the main driving-shaft F. The latter drives, through its bevel-wheel F, the, two bevel-wheels I and K, which are loose'on the side driving-shafts I and K and may at pleasure be coupled with these by feathers or pins I and K respectively. In case the cone G is coupled with the gear-wheel F and the counter-shaft II is put out of gear in the usual manner, the coneG will drive the main driving-shaft F directly. The frame or tool-support C has two flanges O and G on which the two tool frames or heads L and M are arranged to revolve and to be fastened in any position. On the machine shown the heads of the holding-screws L and M fit into the annular grooves C of the dovetailed section, Figs. 5 and 6, so that they can be shifted and allow of the tool-frames being turned around the axes of the side driving-shafts I and K. To secure the tool-frames L and M in their exact vertical or horizontal or slanting positions, pins, such as O and 0 provided in the tool-frames and in the flanges 0 C respectively, may be employed, which are put into holes of suitable size. In a similar manner the frame 0 on the top flange B of the pillar B may be arranged to revolve and to be fastened, its holding-screws B having heads engaging an annular groove.

One tool-frame L carries a hollow spindle L?, which receives a rotary motion from the side driving-shaft I by means of the bevelwheels I L The other tool-frame M carries a slide M which receives a reciprocating motion from the side driving-shaft K by means of the crank-disk K the crank-pin M adjusted in the groove K of said disk, the connecting-rod M and the pin M The hollow spindle L serves in a well-known manner as a guide for the boring-spindle N, which is raised and lowered by the screwspindle 0, connected with it. The latter is prevented from turning by a feather and may be shifted by hand through the hand-wheel O, screwing on the spindle O. In case the pawl O engages the teeth at the periphery of the hand-wheel O, the screw-spindle 0 will thereby be fed automatically, since an eccentric X, arraugedon the hollow spindle L imparts a rocking motion to the pawl 0 through the medium of the eccentric-rod L lever L and lever 0 The slide M has at its one end aslot M in which the pin M may be shifted and adjusted. At the other end the slide M is provided with a tool-holderP of the kind used with key-grooving machines. Besides this the slide M carries about at its center an angular support P for a second tool-holder P which may be arranged to swing around an axle in the wellknown manner. Thus the advantage is attained that the pressure of the tool is about in the middle between the two guides of the slide M so that these guides need not be subjected to unequal wear and tear.

For driving the machine-tool by hand the fly-wheel II, having a handle I1 is put on the counter-shaft II.

At the end of the main driving-shaft F an eccentric F is keyed on for feeding by rod F and chain F certain screw-spindles, to be referred to later on.

The table-carrier E is made in two halves, so that it may be fitted around the pillar B, and it is preferably so arranged that it may be swung around at pleasure, so that the work when once secured on, one table may be treated first with the rotary tool on one side of the machine and afterward with the reciprocating tool on the other side of the machine when desired. For securing the table-carrier E a lever E is employed, with which a screw connecting the two carrier-halves is tightened up. By means of the hand-wheel E its shaft E, the worm E, a worm-wheel E, meshing into it, and a pinion E engaging the rack D at the pillar B, the table-carrier E may be raised and lowered. As shown in Figs. 1, 2, and 3,the table'carrier E has on the one side an arm E, with a dovetailed guide for the table Q, and on the other side a vertical dovetailed guide R for the slide S. The table Q may be moved along the arm E by hand through the screw-spindle Q and a crank. It may also be fed automatically from the eccentric F by means of a ratchet-wheel, such as V, (see Fig. 3,) and a lever with a pawl, such as ll, put on the end of screw-spindle Q, the said lever being connected to said eccentric F by a chain F led over rolls.

On the table Q the slide R is arranged for being shifted by hand through the screwspindle R or fed automatically in the manner indicated by the dotted lines in Fig. 4. The slide S may be raised and lowered by hand through a vertical screw-spindle fitted in the table-carrier E, the bevel-wheels S S and the shaft S by means of a crank. Along the slide S the slide T maybe shifted by the screwspindle T. It carries the slide U, which may be moved by the screw-spindle T. On the slide U the angular slide V, having .L-grooves in its horizontal and vertical faces, may be shifted by the screw-spindle U. Thus the circular table may, with its bottom plate, be secured either on the top face or to the side face of the slide V, so that the work-piece placed and fixed on the table maybe turned around a vertical or a horizontal axis, as the case may be. The table W may be fed around its axis automatically from the eccentric F, the lever V being connected with the chain F and its pawl engaging in the ratchetwheel IV, whereby through the shaft WV and the worm the worm-wheel on the table IV is turned.

For boring purposes a chuck N, with the drill N is fitted, as usual, into the boring-spindle N. Then the tool-frame L is brought into the vertical position, Fig. 1. Instead of the drill N a boring-rod may be inserted.

For turning purposes the tool-frame L is brought into the horizontal position, Fig. 4. Then a chuck-plate may be screwed on the threaded part N of the spindle N. For holding the tool anysuitable support is placed 011 the slide B after the arm E of the table-car rier E has been propped up with a screw-jack.

For milling purposes the tool-frame L may be brought into the horizontal, vertical, or slanting position, as the case may be, and a shaft carrying the cutter is put into the boring-spindle N.

For key-grooving purposes the tool-frame M is brought into the vertical position, Fig. 1, and the tool is secured in. the tool-holder I. For planing or shaping purposes the toolframe M is brought into the slanting or horizontal position, Fig. 4, and the tool is secured in the tool-holder P In the double machine-tool so far described the different parts illustrated may be modified in various ways. The mode of securing the tool-frames L and M on the flanges O and C of the frame C may be varied. The frame 0 may be shaped in any other style, being cast hollow or otherwise. The hollow spindle L may be dispensed with, in which case the bevel-wheel L will be provided with a feather to engage in a key-groove of the boring-spindle N. The teeth on the hand-wheel 0 may be replaced by a separate ratchetwheel, and the automatic feed-gear described may bereplaced by any other automatic feed motion. The arrangement for feeding the various table screw-spindles from the eccentric F may be replaced by other arrangements. The groove K of the crank-disk K may be omitted, in which case the pin 1 3 is rigidly affixed to said disk. The spindle N may be provided with other tool or work-holding devices, according to the nature of the work to be done. The arrangements for securing the tools and the work-pieces may be altered according to the purposes, the size, and shape of the work, and also to other circumstances.

Having fully described and specified this my invention, I declare that what I claim is- The combination of the central standard, a tool-support comprising heads extending from the standard in diametrically opposite directions and carrying bearings at approximately equal distances from the axis of the standard, said heads being mounted to turn about an axis perpendicular to that of the standard, the bearings of each arm alining in a direction perpendicular to the axis about which the heads are mounted to turn, a rotatable tool holder journaled in the bearings of one of said heads, a reciprocating tool-holder mounted to slide in the bearings of the other head, drive-shafts each operatively connected with 

